管理經(jīng)濟(jì)學(xué),英文版-資料下載頁
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【正文】 amp。 k – 1 ? Level of significance ? If Fstatistic exceeds the critical F, the regression equation overall is statistically significant Managerial Economics 414 Multiple Regression ? Uses more than one explanatory variable ? Coefficient for each explanatory variable measures the change in the dependent variable associated with a oneunit change in that explanatory variable Managerial Economics 415 ? Use when curve fitting scatter plot Quadratic Regression Models ? 2Y a b X c X? ? ?? 2ZX ?For l in e ar t ra n s f or mat ion p u t en e w v ar iabl e ? Y a b X c Z? ? ?E s t i m a t e is Ushaped or U shaped Managerial Economics 416 LogLinear Regression Models ? bcY a X Z?U s e w h e n re la t io n t a k e s t h e f o rm : ? YbX?P er cen ta ge ch a n ge in P er cen ta ge ch a n ge in ? YcZ?P er c en ta ge c ha n ge i n P er c en ta ge c ha n ge i n ? l n Y l n a b l n X c l n Z? ? ?T r a n sf o r m by t a k in g n a tu r a l l o ga r ithm s:? bc an d ar e el a sticiti
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